There used to be a saying, if you can’t beat them, join them.
The EU seems to have modified to read, if you can’t beat them, hammer them with legislation until you can.
And even if we assumed that this would be the case, maybe suffering under a "real monopoly" is _exactly_ what the EU needs to push them out of their local maxima. I hope they continue to hammer the ever living shit out of every company that abuses its position to exploit people and deny them their rights. Abusing copyright to prevent people from fixing their own property? Screw every single one of them.
The new georestricted iOS features, like 3rd-party App Stores, are behind feature flags that only activate in certain regions. There are multiple factors taken into account when determining whether a flag should be activated. They include GPS location, location obtained from nearby cell towers, the issuing country of your SIM card, the region you set in settings, the country that nearby WiFi networks broadcast for regulatory purposes[1], and (indirectly, through the billing address) the issuing country of the credit or debit card that you use in the App Store.
Not all of them have to match, but the threshold is high enough that you're very unlikely to meet it while physically in the US.
Feature flags stay activated for 30 days since last eligibility, so if you're an EU resident and leave for a vacation, you're fine. If you traveled here as an US resident, you (probably) could get these features activated, perhaps needing an european Apple ID and/or SIM, but they would only stay on for 30 days.
GDPR applies if your an EU citizen even if _none_ of these is true. I hope the EU emends their markets law so that it grants every EU citizen the right to _easily_ install whatever he or she wants. That would put an end to this nonsense.
Anything less is voyeurism.*
* extreme language I know, but it's precisely how I feel about these acts.
But denying by court a company a right to honestly pay to another company for distribution of their services has much worse long term consequences and is wrong.
Maybe the death of Mozilla, the family of corporate entities, could breathe new life into Firefox, the open source browser. They haven't exactly been great stewards for the last few years. I'm not exactly sure how those vast amounts of money from Google have translated into much tangible progress for the browser.